Alternatively you could type in "90 - acos(-1/3)" for the taper angle.
@MakersMuse
6 жыл бұрын
True that, fusion will accept that.
@therealpanse
6 жыл бұрын
That's what i thought.
@ChemicalArts
6 жыл бұрын
After sleeping on it, I thought of an even more elegant way to do it. Type in "asin(-1/3)". In any case, thanks for the great video. I always learn new things from you.
@MakenModify
6 жыл бұрын
Even with the formula fusion might round it (not sure)
@ChemicalArts
6 жыл бұрын
I think you're right that Fusion 360 rounds even with the formula. The number is an irrational number and can't be represented exactly. There's a setting in Fusion 360 that sets the number of significant figures, but I don't know the software well enough to tell how that works.
@expression3639
2 жыл бұрын
With the the ability to sketch in 3D, you can draw 3 lines that go from the middle of all edges to the center of the triangle. Then select one of the middle point, move it upwards in 3D space, then apply an equal constraint between the edges.
@nikitamedvedev7499
3 жыл бұрын
Loft operation helps me, thanks. I did not know that it can be applied to a point
@6yjjk
6 жыл бұрын
I did it in Onshape a while back, and initially I did something horrific involving two planes perpendicular to the triangle plane, each going through a midpoint and a vertex of the triangle, then drawing circles on them and positioning the 4th vertex where they intersect. Then I figured out your second method - though I think I had to draw some construction lines to define the centre of the triangle, because I'd just drawn it rather than using any fancy triangle tool. Works great - I mirrored everything around and got a perfect icosahedron. Which I then started hacking up into a geodesic dome. :) Thanks for the vid. Great as always.
@TJ13062010
2 жыл бұрын
I watched the video almost 4 years ago. Just found it again, when googling "fusion 360 pyramid" Time flies...
@A_Tempest
6 жыл бұрын
I recently was banging my head against the wall trying to make an irregular shape consisting entirely of triangular and rectangular faces, that would all scale according to a single changed value. I resorted to getting as much as I could do with the standard sketch and extrude then created a new plane for every face of the shape based on two existing sketches/ extrudes, then defining what I could as a ratio of the 'master' length... I feel this was a rather clumsy and inefficient way of solving this issue... after a lot of trial and error it works! This video is the kind of thing I constantly came across trying to solve my issues except more clearly set out. Now all I need is for the 3D printer to arrive...
@reddcube
6 жыл бұрын
Thank you for making Z axis the vertical axis. SO MANY people skip that option in fusion 360
@kiteglyder
6 жыл бұрын
Great tutorial. Literally made one yesterday for a Triforce Lamp I am making. Wish I had waited a day; would have saved me quite a bit of time.
@giantpickle
2 жыл бұрын
Thanks, this was really helpful for making a pyramid! I didn't know about the tapering option in extruding. I was able to use trial-and-error to get about 35 degrees for an equilateral triangle and square base pyramid.
@catalinfpgaguru112
6 жыл бұрын
If you connect every second vertex of a cube you get a tetrahedron. The tetrahedron edge will be the cube edge times sqrt(2).
@LMF5000
6 жыл бұрын
Awesome. I knew I needed to loft the triangle of the base to a point, but I got stuck determining the height of the point. I resorted to calculating the necessary height using trigonometry. Your method of choosing a plane that intersects the point is genius. That way the diagonal lies on the sketch plane so it allows you to simply use a dimension on the diagonal line to perfectly position the top point at the right height. Wish I'd thought of that!
@KidKobe210
6 жыл бұрын
I’m a simple man, I watch a new @Makers Muse video, I hit “Like”
@RonFloyd
6 жыл бұрын
Thanks for the detailed explanations Angus - on point, as always
@JulianSammy
6 жыл бұрын
I have been struggling with this for ages! Thank you!
@YV5OF
6 жыл бұрын
Hi Angus, excellent tutorial. I could do it following your video and now I'm trying different geometries. Thank you.
@KieranShort
6 жыл бұрын
Well explained as always. Autodesk needs to include these 3d primatives as standard though.
@MNbenMN
6 жыл бұрын
^ This! ^ Platonic solids as primitives would be a great addition. I just checked the Fusion 360 IdeaStation on the autodesk forum and this had been suggested as a feature a couple years ago, but then shut down due to lack of support with only 3 votes. :( Maybe the title "Add Platonic Solids for modeling" didn't resonate with people...?
@MNbenMN
6 жыл бұрын
David In a lot of 3d modeling programs, basic shapes like spheres, cylinders, prisms, cubes, and regular polyhedra are called primitives, since they can be used as a simple base to build up more complex designs.
@MNbenMN
6 жыл бұрын
Ok, cool. Though, you missed a comma.
@MNbenMN
6 жыл бұрын
Takes one to know one. *repeatedly pressing refresh*
@octodionis
6 жыл бұрын
I also use a loft for all my tetrahedrons. Using two sketches is kind of annoying but it's worth having a perfect pyramid in the end.
@OzFaxFlyer
6 жыл бұрын
Angus picks something interesting, and then records video Email notification tells me its there I watch and learn how to "Loft"! Hit Like ...repeat...
@MakersMuse
6 жыл бұрын
Haha, some videos are planned some just happen :)
@CaptainC597
6 жыл бұрын
thank you Angus! Exactly what I was looking for to create a Nato Star.
@HD3DProductions
6 жыл бұрын
Makers Muse at 2 am? why the hell not! its not like I was sleeping anyways lol
@user-qx7tm5df8j
6 жыл бұрын
2 o'clock? where on earth are you living? _see what i did there ( ͡° ͜ʖ ͡°)_
@rdizzle2050se
6 жыл бұрын
As always, useful info. Thank you Angus
@gnydick
6 жыл бұрын
You can also draw all of the sides in 2D and fold it up. Happy to show you how. BTW, knew you couldn't resist making the right one ;)
@victor0pr0
4 жыл бұрын
i would really like to know how that is made, it would be very helpful since i'm learning how to use this software
@gnydick
4 жыл бұрын
@@victor0pr0I'll see if I can find my file
@christianbarnay2499
6 жыл бұрын
Another construct for the tetrahedron is to make a cube and cut out 4 corners with the cutting planes going through face diagonals. And if you repeat that with the 4 other corners of the same cube and merge both tetrahedrons, you'll have a nice stellated octahedron.
@MakenModify
6 жыл бұрын
Hehe what a coincidence :D the second way is exactly what I used today to construct the top of a D20 dice xD (btw you don't need to add the point where the lines meet, its allready there. Same for projecting the origin) looking forward to the next tutorial :D
@3-E
6 жыл бұрын
I had no idea there was a draw a polygon feature. This would have saved lots of time with a project I was doing where I needed to make various hexagons. I ended up working out a strategy using lines and rotated patterns. Draw polygon would have been so much easier.
@l3d-3dmaker58
6 жыл бұрын
hey! how do you 3d model the rest of the polyhedrons? i want to make a dodecahedron and icosahedron, and well, the rest (I want to make custom dice for d&d and a dodecahedron storage)
@thetraveller1246
6 жыл бұрын
Super helpful. Thanks Angus
@Mitch3D
6 жыл бұрын
Now to make Scutoids in Fusion 360
@MakersMuse
6 жыл бұрын
DO I HAVE TO lol .. ok :
@maksimtumanov3134
4 жыл бұрын
THANK YOU VERY MUCH
@Georges-MILLION
4 жыл бұрын
Très bien , merci beaucoup .
@sodahead0
3 жыл бұрын
I figured out how to create a tetrahedron symmetric about the origin. Meaning the distance of each of the four corners of the tetrahedron to the point on the origin are the same. The angle between these lines is approx 109.47 degrees.Use the vertical sketch plane to create this sketch. The trick is to create the equilateral triangle but one of the edges is parallel to the vertical axis. . Then create a circle and then make sure all the points on the triangle are on that circle. Then create an isosceles triangle. On the isosceles triangle, create a line from the bottom left corner to the midpoint of the right edge of the isosceles triangle. Make it perpendicular to that edge. Now the bottom left point of the isosceles triangle is coincident with the vertical edge of the equilateral triangle. The bottom right point is vertically aligned with the tip of the equilateral triangle. To do that, draw a line from the tip of the equilateral triangle to the bottom right point of the isosceles triangle. Make that line vertical. Now add a dimension on the right edge of the isosceles triangle. Make everything construction except for the isosceles triangle. Make a plane parallel to the horizontal plane at the bottom right point of the isosceles triangle. Create a sketch, project the points and create an equilateral triangle on those points. Now you have two sketches, which you can use the tip of the isosceles triangle to make your loft. If you only use one dimension, it becomes very easy to change the size of the tetrahedron.
@JoeGameVideos
3 жыл бұрын
thank you :) i did the easy method and then typed in stuff till it was right by the 0.001 with zoomed in
@Penwiggle
5 жыл бұрын
Awesome video! Perfectly answered my question. :)
@billjames1953
6 жыл бұрын
Thanks, still trying to pick up on all the Fusion 360 methods.
@Pelnied
6 жыл бұрын
Another method is to create an offset plane with an offset equal to the height of the tetrahedron. After that you draw the smallest circle possible on that plane and loft the triangle to the circle.
@7DiamondMantis
4 жыл бұрын
I made some dice today! Thank you MM!!/|\
@justinallen4903
6 жыл бұрын
I didn't realize that you could do a loft from a plane to a point. That could prove quite handy.
@ionpunk341
6 жыл бұрын
You might be able to use the measure tool with way more decimal points to see how far off the first method is. Also the 90-acos(-1/3) is probably also nearly perfect
@runklestiltskin_2407
6 жыл бұрын
That's what I meant, document more of your process in a video and you come quite close to uploading each day. To see how your work is constructed is way more interesting than to take a look at the finished thing.
@MakersMuse
6 жыл бұрын
true, but I don't usually have the time to edit it! It takes hours.
@Veptis
6 жыл бұрын
Fusion360 isn't great for the task - but euclid geometry can be adapter into 3D space. So you are just allowed spheres and straight lines. After you made your initial triangle, three spheres of the same radius as the side of he triangle will give you two points where all intersect. And those are your possible tetrahedron.
@Veptis
6 жыл бұрын
How about a sphere? Where 4 points lie on the surface with the same distance between all of them? You can also make other platonic solids but trimming platonic solids. For example a cube. Cut all edge so the new vertices meet, and you get an octahedran.
@aimaker
5 жыл бұрын
good ^^ thanks
@spikekent
6 жыл бұрын
Fantastic tutorial.
@bryanjones1781
6 жыл бұрын
Hey Angus. The formula 'acos(0) - acos(1 / 3)' works equally well.
@bryanjones1781
6 жыл бұрын
I will say that I do like seeing the alternate methods. For one I had never used the loft function. As always, thanks for the great videos.
@MakersMuse
6 жыл бұрын
Cheers Bryan! Yeah using a formula is a nice alternative to a rounded decimal as well. Many ways to CAD a shape :)
@ssippishark
6 жыл бұрын
Great videos👍 Thanks
@bocochoco
6 жыл бұрын
Can you do a video on 8-sided, 10-sided, 12-sided, and 20-sided polyhedrons?
@studiovulcan4411
Жыл бұрын
3:40 i really wish you explained why here. Why matters a lot in learning.
@Tomasu82
6 жыл бұрын
Hm, i wonder.. Ive been trying to figure out how to do other polyhedra in cad packages, but it always seemed far too manual and error prone... but using the second method may make it easier for me :D
@Robothut
6 жыл бұрын
Wow that's easy for you to say Angus. There is a last method, wait until some posts a STL file on thing-I-verse. Just kidding. Great video Angus, thanks for sharing.
@carbide1968
6 жыл бұрын
When you say using decimals will make it slightly off, can you give a rough estimate for say the other 60mm measurements? Are they 60.01mm or something Angus? Need to know if the extra effort is worth it especially for 3d printing.
@studiovulcan4411
Жыл бұрын
The step where you "d" the line and type in 60 doesn't work for me. I do the same steps and right until this point, it's fine. After i move it with D and type the length i need, it gives me an error. Failed to solve. Delete or modify constraint or dimension.
@LeonMyTube
6 жыл бұрын
Pls make a video about organizing the files (stl, dwg, gcode etc) is there some programs out there or using folders only (what foldersystem etc)
@asgkllngfxxhkkvxdhkkbhjllnvcg
6 жыл бұрын
Great!
@hcmacko393
6 жыл бұрын
Can you make a tutorial how to edit stl files in Fusion 360 (explaining mesh, brep, etc.)?
@darshitdarji3217
5 жыл бұрын
I want to make a tetrahedron that only have edges but not inner bulk and faces. How to do it?
@darshitdarji3217
5 жыл бұрын
What is the difference between press pull and extrude?
@Richard97402
4 жыл бұрын
Am I missing something? Why not just do a loft between the 2D triangle, and a point, above the center point? I can make the tetrahedron shape in about 10 seconds.
@magomat6756
6 жыл бұрын
Why do you not make more meshmixer tutorials.
@beelzedrum
5 жыл бұрын
Great video guy, but you should speak and show what you do a little bit slowly!
@TheJttv
6 жыл бұрын
Is there a equivalent to solidworks 3d sketches in fusion 360?
@MakersMuse
6 жыл бұрын
Yes and no - yes there is, no they don't work at all. Total kludge trying to make it work as a constrained 3D Sketch that's how I would have liked to do it.
@terrymoorecnc2500
6 жыл бұрын
That's like work. In commercial software it's 2 minutes.
@DennisJHarrisonJrHere
6 жыл бұрын
Slick! :)
@triblax
4 жыл бұрын
please someone saw hollow tetrahedron model with equilateral triangles sides? I can't make it :(
@alexanderskusnov5119
4 жыл бұрын
How to add 4 colors?
@code-grammardude5974
6 жыл бұрын
IN the first thousand views!
@markswayne6326
6 жыл бұрын
Do you know any good techiques to help with drawing polyhedra with more sides? Like an dodecahedron or a cuboctahedron, perhaps.
@scanerang
6 жыл бұрын
you could draw a sphere then draw polyhedra inside it with the points touching the sphere, but you do need to do some math to figure out the size of the polyhedra. (all points on a sphere are equidistant from the center, if you know the angle of the center to 2 points you can calculate the distance between them)
@markswayne6326
6 жыл бұрын
Vincent van Roosmalen, good idea. But can one assume that all vertexes of a regular or quasiregular polyhedron are coincident with a sphere? Edit: maybe if they are convex. Nonconvex counter example is dodecadodecahedron. But that leads one to ask how many spheres are needed to ecapsulate all the vertexes and how their radiuses may vary in relation to one another.
@scanerang
6 жыл бұрын
Mark Swayne for the platonic solids i'm sure because of the symetries, but the rest i'm not sure. Thinking about symetries will make it a lot easier though.
@weldmaster80
6 жыл бұрын
I know that tetrahedron, and she is anything but platonic
@RaymondOreFineArt
6 жыл бұрын
Surely the second method is also not perfectly accurate as it ultimately relies on the base accuracy of the program which I'm guessing is high enough for the real worlk but not mathamatically perfect
@ChannelHTS
6 жыл бұрын
i am sure this will comenin ha dy one day
@hexaguin
6 жыл бұрын
I'm not at my computer right now, but couldn't you just use the proper definition, 90-acos(1/3), as your angle, instead of rounding it?
@MakersMuse
6 жыл бұрын
yeah you can, that's another way to do it for sure.
@NikolajLepka
Жыл бұрын
I'm pretty sure Fusion 360 can just do math in the number input box
@austinnadeau8756
6 жыл бұрын
What is the purpose of a tetrahedron
@scanerang
6 жыл бұрын
sometimes you need a certain shape and a tetrahedron is the easiest one to explain. I'm sure he'll make a series of other common shapes.
@austinnadeau8756
6 жыл бұрын
Thanks I don't know
@PiotrMarkiewicz
6 жыл бұрын
Why not use 3d lines instead of loft?
@mroek
6 жыл бұрын
Sure you could, but it would be more work, as far as I can tell.
@PiotrMarkiewicz
6 жыл бұрын
1st line is already added, so adding 2 more should be easy. Yeah but then you need to create solid somehow :)
@mroek
6 жыл бұрын
Yes, and that can be done by creating patches and then stitch those to get a solid. Point is that it is more work than either of the methods shown in the video.
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